Table of Contents
Advertisement
OH-1202H
Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS
CAREFULLY BEFORE INSTALLING OR OPERATING THIS
CONTROL COULD CAUSE PERSONAL INJURY AND/OR
PROPERTY DAMAGE.
THERMOSTAT APPLICATION GUIDE
Configuration Options
Gas, Oil, Electric, Heat Only,
Systems, 2 or 3 wire Hydronic
Zone (Hot Water or Steam)
Systems, 24 Volt or Millivolt
Single Stage Compressor
Heat Pump Systems - up to 2
Heat Pump (HP1)
Stages Aux./Emergency Heat
Heat Pump 2
Two Stage or Two Compressor
Two Stage or Two
Compressor Heat Pump
Stages Aux./Emergency Heat
Electrical Rating:
Battery Power . . . . . . . . . . . . . . . . . . . . . . . . . . mV to 30 VAC, NEC Class II, 50/60 Hz or DC
Input-Hardwire . . . . . . . . . . . . . . . . . . . . . . . . . 20 to 30 VAC
Terminal Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A per terminal, 2.5A maximum all terminals combined
Setpoint Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 to 99°F (7 to 37°C)
Rated Differentials:
Heat (Single Stage/Multi-Stage) . . . . . . . . . . . .
Cool (Single Stage/Multi-Stage) . . . . . . . . . . . .
Heat Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emer Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Ambient. . . . . . . . . . . . . . . . . . . . . . . . . . 32°F to +105°F (0 to +41°C)
Operating Humidity . . . . . . . . . . . . . . . . . . . . . . . . . 90% non-condensing max.
Shipping Temperature Range . . . . . . . . . . . . . . . . . -40 to +150°F (-40 to +65°C)
Dimensions Thermostat. . . . . . . . . . . . . . . . . . . . . . 4-9/16"H x 5-13/16"W x 1-3/16"D
Humidity Setpoint Range . . . . . . . . . . . . . . . . . . . . . 5 to 50%
Dehumidification Setpoint Range . . . . . . . . . . . . . . 40 to 95%
CAUTION
!
To prevent electrical shock and/or equipment damage,
disconnect electric power to system at main fuse or
circuit breaker box until installation is complete.
Index
Installation
Maximum
Thermostat
Stages
Applications
Heat/Cool
Cool Only or Heat/Cool
Universal Humidity Touchscreen Thermostat
with Humidity/Dehumidity Control and
Automatic Heat/Cool Changeover Option
Single Stage, Multi-Stage, Heat Pump
Installation and Operating Instructions
7 Day
5+1+1 Day
1/1
2/2
3/1
4/2
Fast.
Slow
0.6°F
1.5°F
1.2°F
1.7°F
1.2°F
1.7°F
0.6°F
1.7°F
ATTENTION: MERCURY NOTICE
This product does not contain mercury. However, this prod-
uct may replace a product that contains mercury.
Mercury and products containing mercury must not be
discarded in household trash. Do not touch any spilled
Page
mercury. Wearing non-absorbent gloves, clean up any
2
spilled mercury and place in a sealed container. For proper
3
disposal of a product containing mercury or a sealed
5
container of spilled mercury, place it in a suitable shipping
6
container. Refer to www.thermostat-recycle.org for loca-
10
12
tion to send the product containing mercury.
15
Programming Choices
Non-Programmable
APPLICATIONS
SPECIFICATIONS
PART NO. 37-7406A
1242
Advertisement
Table of Contents
Summary of Contents for Comfort Sentry OH-1202H
-
Page 1: Table Of Contents
Universal Humidity Touchscreen Thermostat OH-1202H with Humidity/Dehumidity Control and Automatic Heat/Cool Changeover Option Single Stage, Multi-Stage, Heat Pump Save these instructions for future use! Installation and Operating Instructions FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS Programming Choices CAREFULLY BEFORE INSTALLING OR OPERATING THIS... -
Page 2: Thermostat
INSTALLATION WARNING Thermostat Power Method Switch Position/Description Battery Powered, no 24 Switches "On", thermostat Thermostat installation and all components of the Volt system power available. runs on batteries. control system shall conform to Class II circuits per Hardwired with Battery Switches "On", thermostat the NEC code. -
Page 3: Single Stage
WIRING DIAGRAMS Figure 2 – Single Stage or Multi-Stage System (No Heat Pump) with Single Transformer System Single Stage 1 Call for cool No Output Call for heat No output Installer (SS1) Configuration Fault or System Menu selects 24 volt Malfunction “O”... - Page 4 WIRING DIAGRAMS Figure 4 – Humidity and Sensors De-energizes on call for Humidification Terminal, Supply voltage Supply voltage Remote Dehumidification to Energizes on call for to remote to remote temperature lower the fan speed. heat if Humidity setpoint temperature temperature sensor signal The DHM terminal is is above room humidity.
-
Page 5: Thermostat Quick Reference
THERMOSTAT QUICK REFERENCE Home Screen Description Figure 8 – Home Screen Display Room Temperature Day of Week Set Temperature/Humidity Time of Day Note: If is displayed, the Temperature thermostat is battery powered. UP/Down used for System When battery power remaining modifying setpoint Switch is approximately half,... -
Page 6: Installer Configuration Menu
INSTALLER/CONFIGURATION MENU To enter the menu: Press the Menu touch key. Press and hold for 5 seconds the Installer Config touch key. This displays screen reference #1 in the table below. Screen Reference numbers appear in top right corner of display. Press to advance to the next menu item or to return to a previous menu item. - Page 7 INSTALLER/CONFIGURATION MENU CONFIGURATION MENU Screen Press Displayed Comments Option Press Reference Factory Selected to select from Number (Default) listed options (35) dF -5 - 50 Selects Dual Fuel setpoint (°F), dF selected On with outdoor sen- sor available. (05) dF 0 - 09 Selects Dual Fuel setpoint (°F), dF selected On with no outdoor ...
- Page 8 INSTALLER/CONFIGURATION MENU a time delay built in and do not require this feature to be humidity allowing a slightly higher temperature to feel activated in the thermostat. Your compressor manufactur- comfortable. As the peak load subsides, this feature also er can tell you if this lockout feature is already present in takes advantage of the air conditioner's increased capacity their system.
- Page 9 INSTALLER/CONFIGURATION MENU Skip this step and continue through the remainder of the pump system versus your auxiliary system relative to the configuration menu if you require an Air Filter Change thermostat adjustment. The higher the number the sooner out indicator or Humidifier Pad Change out indicator by the auxiliary stage energizes for better comfort.
-
Page 10: Operating Your Thermostat
INSTALLER/CONFIGURATION MENU again. This dehumidification feature may use more energy “HM” terminal) if the actual humidity is below the humid- by making dehumidification a priority initiating a call for ity set point. The display indicates AH. Pressing the cooling if humidity is 2% above desired setting. This key will cycle the display from OFF to H (feature enabled feature may also over-cool the condition space by up to 3 in Heat mode) to C (feature enabled in Cool mode) to A... - Page 11 OPERATING YOUR THERMOSTAT Choose the Fan Setting (Auto or On) Emergency Mode Applies only to Heat Pump Systems Fan Auto is the most commonly selected setting and runs the fan only when the heating or cooling system is on. Emergency Heat (System EM Position) bypasses the Heat Pump to use the heat source wired to terminal W/E, W2 on Fan On selection runs the fan continuously for increased air the thermostat.
-
Page 12: Programming
PROGRAMMING Set Current Time and Day Fill in the blank schedule on the next page then: 1. Press Menu key to enter installer menu. Then press Enter the Heating Program Set Time once to indicate hour & AM or PM designation 1. - Page 13 PROGRAMMING Programmable Fan Option Cooling Example: In the Set Schedule mode, the Fan key is used to select the 1. In cool, press Auto Schedule once. fan operation during a program period. The default state of 2. Press to select a comfortable cooling tempera- the Fan key is FAN Auto (fan runs during a call for cool but ture (example 75°).
- Page 14 PROGRAMMING Worksheet for Re-Programming 5+1+1 and 7 Day Program Heating Wake Up Leave For Work Return Home Go To Bed Program (Morning) (Day) (Evening) (Night) 6:00 AM 70°F Auto 8:00 AM 62°F Auto 5:00 PM 70°F Auto 10:00 PM 62°F Auto 6:00 AM 70°F...
-
Page 15: Troubleshooting
PROGRAMMING Averaging or Weighting Remote Sensors Dual Fuel Temperature Setpoint The thermostat will weight or average the temperature of the When the thermostat is configured for Heat Pump mode and indoor remote sensor with the local sensor in the thermostat the Dual Fuel feature is selected on, the thermostat can moni- for each program period. - Page 16 TROUBLESHOOTING Reset Operation Note: If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation, you can reset the thermostat by removing the thermostat from the wall plate and removing batteries for 2 minutes. After two minutes, replace the batteries and replace thermostat on wall plate.
Need help?
Do you have a question about the OH-1202H and is the answer not in the manual?
Questions and answers